Please check latest availability status for a specific part variant.


Neither the DS2223 or DS2224 are available for new designs.

The DS2223 and DS2224 EconoRAMs are fully static, micropowered, read/write memories in low-cost TO-92 or SOT-223 packages. The DS2223 is organized as a serial 256 x 1-bit static read/write memory. The DS2224's first 32 bits are lasered with a unique ID code at the time of manufacture; the remaining 224 bits are static read/write memory. Signaling necessary for reading or writing is reduced to just one interface lead.

Key Features

  • Low-cost, general-purpose, 256-bit memory
    • DS2223 has 256-bit SRAM
    • DS2224 has 32-bit ROM, 224-bit SRAM
  • Reduces control, address, and data interface to a single pin
  • Each DS2224 32-bit ROM is factory-lasered with a unique serial number
  • DS2224 portion of ROM with custom code and unique serial number available
  • Minimal operating power: 45 nanocoulombs per transaction at 1.5V typical
  • Less than 15nA standby current at +25°C
  • Nonvolatile data retention easily achieved by low-cost alkaline batteries or capacitors
  • Directly connects to a port pin of popular microcontrollers
  • Operation from 1.2V to 5.5V
  • Popular TO-92 or SOT-223 surface mount package
  • Operates over industrial temperature range -40°C to +85°C

Quality and Environmental Data

Request Reliability Report for: DS2224 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

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2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.